EXECUTABLE_ONLY for the CLIs

So far, the CLI where used as Shared object module. A shared object module
give the advantages of reducing the reading/writing of files since they
are directly passed through slicer's API. However, there is no progress
feedback and no way of cancelling such module.
(See http://www.na-mic.org/Bug/view.php?id=2965)
That's way we switch our CLIs to EXECUTABLE_ONLY so they can be cancelled
and give feedeback.

Note: In the case of pose body, we prefer perfomance over control, this is
why it stays a shared module object.

See Issue #13915